Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Joon-hoo Choi"'
Publikováno v:
Journal of Non-Crystalline Solids. 354:2509-2512
We investigated the electrical properties of polycrystalline silicon (poly-Si) thin film transistors (TFTs) employing field-enhanced solid phase crystallization (FESPC). An n+ amorphous silicon (n+ a-Si) layer was deposited to improve the contact res
Autor:
Won-Kyu Lee, Joon-hoo Choi, Jae-Hoon Lee, Kyuha Chung, Sung-Hwan Choi, Hyun-Sang Park, Min-Koo Han, Joon-Chul Goh
Publikováno v:
SID Symposium Digest of Technical Papers. 38:165-168
Highly stable voltage programmed a-Si:H TFT pixel circuit for AMOLED, which employs both Vth-compensation and negative bias annealing, is proposed and fabricated. Experimental results, after 60 hours electrical stress at elevated temperature (60°C)
Autor:
Jong-Moo Huh, Jae-Hong Jeon, Sang-Geun Park, Kyuha Chung, Joon-Chul Goh, Joon-hoo Choi, Jae-Hoon Lee, Min-Koo Han
Publikováno v:
Japanese Journal of Applied Physics. 46:1350-1353
We propose and fabricate a new hydrogenated amorphous silicon (a-Si:H) thin-film transistor (TFT) pixel employing a fraction time annealing (FTA), which can supply a negative gate bias during a fraction time of each frame rather than the entire whole
Autor:
Jae-Hong Jeon, Sang-Geun Park, Kyuha Chung, Min-Koo Han, Joon-Chul Goh, Joon-hoo Choi, Jae-Hoon Lee
Publikováno v:
ECS Transactions. 3:287-292
The new a-Si:H TFT pixel circuit, which successfully suppresses OLED current error caused by the hysteresis of a-Si:H TFT, is proposed and fabricated.When an identical VGS and VDS is applied to a-Si:H TFT device, the drain current of a-Si:H TFT is al
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 505:155-158
In this paper, we introduce a new 36×43 cm 2 amorphous silicon flat-panel detector for digital radiography. A prototype flat-panel detector was fabricated using a p–i–n photodiode/thin-film transistor (TFT) array. The main difference of this fla
Autor:
Joon-hoo Choi, Hyung-Ik Lee, Joon-Suc Jang, Jinyool Kim, J. K. Chee, Young-Chul Park, J. M. Kim, B. H. Jung, J. H. You, Gyeong-Su Park, Y. W. Jin, Eun Soo Lee, Jung-Pyo Hong, Nam-Geol Lee, Sanguhn Cha, J.E. Jung, S. H. Kang
Publikováno v:
SID Symposium Digest of Technical Papers. 31:674-677
Oxidation and chemical modification of molybdenum micro tip surface have been investigated to understand the performance degradation mechanism of field emitter arrays(FEAs). Molybdenum FEAs could be easily oxidized due to their interaction with oxyge
Autor:
Kunal Girotra, Jong-Moo Huh, Joon-hoo Choi, Hong Chen, Jun H. Souk, A. Abramov, Chiwoo Kim, Pere Roca i Cabarrocas, Seung-Kyu Park, Kyong-Tae Park
Publikováno v:
Japanese Journal of Applied Physics. 47:7308-7310
Despite many years of research on microcrystalline silicon films, these materials have not yet found industrial application as thin film transistors. We discuss difficulties in their accurate characterization and compare the advantages and disadvanta
Autor:
Joon-hoo Choi, J. S. Hwang, Sung Hoon Hong, Dong-Won Ahn, Sungwoo Hwang, B.-H. Jeon, H. K. Kim
Publikováno v:
Applied Physics Letters. 85:1636-1638
We demonstrate the effect of Ti thickness on the contact resistance between GaN nanowires and Ti∕Au electrodes. We have carried out systematic characterization of many GaN nanowires contacted by various Ti∕Au electrodes. We conclude that the aver
Publikováno v:
IEEE Electron Device Letters. 25:381-383
Thin-film transistor liquid crystal display (TFT-LCD) panels of a high transmittance structure were fabricated by using a low-/spl kappa/ dielectric film as a passivation layer. The low-dielectric films were successfully deposited and patterned using
Publikováno v:
Applied Physics Letters. 80:4843-4845
In this letter, we report the leakage current of amorphous silicon (a-Si:H) p-i-n photodiodes, of which the p layer is formed by ion shower doping. The ion shower doping technique has an advantage over plasma-enhanced chemical vapor deposition (PECVD